tcsh(1) on Linux
The text 450475518bc6, as Debian 11 (Bullseye) shipped it.
C shell with file name completion and command line editing
Flags it lists
-
--help -
--version -
-Dname -
-F -
-V -
-X -
-b -
-c -
-d -
-e -
-f -
-i -
-l -
-m -
-n -
-q -
-s -
-t -
-v -
-x -
-y